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Article
Measurement of crack opening stresses and crack closure stress profiles from heat generation in vibrating cracks
Applied Physics Letters
  • Jeremy Blake Renshaw, Iowa State University
  • Stephen D. Holland, Iowa State University
  • R. Bruce Thompson, Iowa State University
Document Type
Article
Publication Date
8-25-2008
DOI
10.1063/1.2976310
Abstract

A method is described to measure crack opening stresses and closure stress profiles of a surface-breaking crack. Vibration is used to generate frictional heat by rubbing crack face asperities. Heat is generated at regions of contacting crack asperities under low, but nonzero, closure stress. Increasing force is applied to incrementally open the crack and measure the locations of crack heating as a function of applied load. Surface crack closure stresses are approximated from the heating locations as the load is varied and the crack opening stress is measured from the load required to fully open the crack and terminate heat generation

Comments

This article appeared in Applied Physics Letters 93, no. 8 (2008): 081914, doi:10.1063/1.2976310.

Rights
Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Copyright Owner
American Institute of Physics
Language
en
Date Available
November 14, 2012
File Format
application/pdf
Citation Information
Jeremy Blake Renshaw, Stephen D. Holland and R. Bruce Thompson. "Measurement of crack opening stresses and crack closure stress profiles from heat generation in vibrating cracks" Applied Physics Letters Vol. 93 Iss. 8 (2008) p. 081914
Available at: http://works.bepress.com/rbruce_thompson/19/